题目内容

Only after I read the text over again ______ its main idea.

A. that I knew
B. did I know
C. I could know
D. I did know

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---- You seem to have learned all the English words by heart.----__________.

A. So I do.
B. So do I.
C. So I have.
D. So have I.

So excited ________ that he couldn't say a word.

A. he seemed
B. did he seem
C. was he seeming
D. he did look

Jimmy was so nervous that not a single word _______ down in the dictation.

A. he wrote
B. he was written
C. did he write
D. was he written

DR和BDR选举出来后，OSPF网络处于（）状态。

A. exstart
B. full
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